| 1 Holywell Road, Watford | Freehold | 87 m² | £155,000 (2002) |
| 1A Holywell Road, Watford | - | 54 m² | - |
| 5 Holywell Road, Watford | Freehold | 113 m² | £470,000 (2022) |
| 7 Holywell Road, Watford | - | 105 m² | - |
| 9, Holywell Road, Watford | Freehold | 103 m² | £390,000 (2020) |
| 11, Holywell Road, Watford | Freehold | 71 m² | £325,000 (2019) |
| 13, Holywell Road, Watford | Freehold | 56 m² | £300,000 (2020) |
| 15, Holywell Road, Watford | Freehold | 68 m² | £239,950 (2013) |
| 17 Holywell Road, Watford | Freehold | 91 m² | £222,000 (2008) |
| 27 Holywell Road, Watford | Freehold | 109 m² | £237,500 (2008) |
| 29, Holywell Road, Watford | Freehold | 79 m² | £370,000 (2017) |
| 31, Holywell Road, Watford | Freehold | 76 m² | £435,000 (2025) |
| 37, Holywell Road, Watford | Freehold | 86 m² | £500,000 (2023) |
| 37A Holywell Road, Watford | - | 108 m² | - |
| 37B Holywell Road, Watford | - | 105 m² | - |
| 39 Holywell Road, Watford | Freehold | 139 m² | £500,000 (2023) |
| 43 Holywell Road, Watford | - | 69 m² | - |
| 45, Holywell Road, Watford | Freehold | 362 m² | £195,000 (2009) |
| 49 Holywell Road, Watford | Freehold | 66 m² | £275,000 (2015) |
| 51, Holywell Road, Watford | Freehold | 51 m² | £331,000 (2021) |
| 53, Holywell Road, Watford | Freehold | 62 m² | £345,000 (2021) |
| 55, Holywell Road, Watford | Freehold | 62 m² | £219,000 (2007) |
| 57, Holywell Road, Watford | Freehold | 75 m² | £250,000 (2013) |
| 69 Holywell Road, Watford | Freehold | 77 m² | £412,500 (2017) |
| 73, Holywell Road, Watford | Freehold | 80 m² | £175,000 (2006) |
| 75, Holywell Road, Watford | Freehold | 72 m² | £337,000 (2018) |
| 77, Holywell Road, Watford | Freehold | 77 m² | £272,000 (2014) |
| Flat 1, 41 Holywell Road, Watford | - | 42 m² | - |
| Flat 1, 59-63, Holywell Road, Watford | Leasehold | 47 m² | £225,000 (2021) |
| Flat 2, 59-63, Holywell Road, Watford | Leasehold | 47 m² | £222,000 (2021) |
| Flat 3, 59-63, Holywell Road, Watford | Leasehold | 45 m² | £210,000 (2015) |
| Flat 4, 59-63, Holywell Road, Watford | Leasehold | 44 m² | £230,000 (2020) |
| Flat 5, 59-63, Holywell Road, Watford | Leasehold | 58 m² | £245,000 (2017) |
| Flat 6, 59-63, Holywell Road, Watford | Leasehold | 52 m² | £167,000 (2007) |